Tracking wound healing progress using remote image analysis
Inventors
ADIRI, Yonatan • Omer, Ido • Zohar, Ron
Assignees
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Publication Number
US-11676705-B2
Publication Date
2023-06-13
Expiration Date
Abstract
Systems and methods for tracking healing progress of multiple adjacent wounds are provided. In one embodiment, a system may include a processor configured to receive a first image of a plurality of adjacent wounds near a form of colorized surface having colored reference elements, determine colors of the plurality of wounds, correct for local illumination conditions, receive a second image of the plurality of wounds near the form of colorized surface, to determine second colors of the plurality of wounds in the second image, match each of the plurality of wounds in the second image to a wound of the plurality of wounds in the first image, and determine an indicator of the healing progress for each of the plurality of wounds based on changes between the first image and the second image.
Core Innovation
The invention tracks healing progress of multiple adjacent wounds by receiving a first image of the plurality of wounds, where each wound has multiple segments of differing colors, and determining first colors of the plurality of wounds. The method receives a second image of the plurality of wounds, where capture of the second image occurs at least one day after capture of the first image, and determines second colors of the plurality of wounds in the second image.
The method matches each of the plurality of wounds in the second image to a corresponding wound of the plurality of wounds in the first image, based on the determined wound colors. For each wound, the method determines an indicator of the healing progress based on changes between the first image and the second image.
In additional described implementations, the invention uses a colorized reference surface with differing color versions across images, determines colors while correcting for local illumination conditions, and rectifies colors. It also determines a time difference and predicts an expected appearance of each wound in the second image based on the determined time difference, and uses the predicted expected appearance for matching.
Claims Coverage
The independent claims cover an image-based workflow for tracking healing progress of multiple adjacent wounds by determining colors in two images captured at least one day apart, matching wounds across the two images, and determining healing-progress indicators from changes between the images.
Color-segment comparison between first and second wound images
Receiving a first image of a plurality of adjacent wounds, where each wound has multiple segments of differing colors in the first image; determining first colors of the plurality of wounds; receiving a second image of the plurality of wounds where capture of the second image occurs at least one day after capture of the first image; and determining second colors of the plurality of wounds in the second image.
Matching corresponding wounds across time images
Matching each of the plurality of wounds in the second image to a corresponding wound of the plurality of wounds in the first image.
Healing-progress indicator from changes between images
Determining an indicator of the healing progress for each of the plurality of wounds based on changes between the first image and the second image.
Across the independent claims, the inventive core is the two-image, segment-color-based comparison of multiple adjacent wounds captured at least one day apart, the matching of corresponding wounds across time, and the determination of a healing-progress indicator for each wound from changes in colors between the first and second images.
Stated Advantages
Documented Applications
No documented applications found
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